QInstaller::ComponentSelectionPage Class

Member Function Documentation

[explicit] ComponentSelectionPage::ComponentSelectionPage(QInstaller::PackageManagerCore *core)

Constructs a component selection page with core as parent.

[virtual noexcept] ComponentSelectionPage::~ComponentSelectionPage()

Destructs a component selection page.

[invokable] bool ComponentSelectionPage::addVirtualComponentToUninstall(const QString &name)

Adds an additional virtual component with the name to be installed.

Returns true if the virtual component is found and not installed.

[invokable] void ComponentSelectionPage::deselectAll()

Deselects all components in the component tree.

[invokable] void ComponentSelectionPage::deselectComponent(const QString &id)

Deselects the component with id in the component tree.

[override virtual protected] void ComponentSelectionPage::entering()

Reimplements: PackageManagerPage::entering().

Initializes the page's fields based on values from fields on previous pages. The text to display depends on whether the page is being used in an installer, updater, or uninstaller.

[override virtual] bool ComponentSelectionPage::isComplete() const

Reimplements: PackageManagerPage::isComplete() const.

Returns true if at least one component is checked on the page.

[override virtual protected] void ComponentSelectionPage::leaving()

Reimplements: PackageManagerPage::leaving().

Called when end users leave the page and the PackageManagerGui:currentPageChanged() signal is triggered.

[invokable] void ComponentSelectionPage::selectAll()

Selects all components in the component tree.

[invokable] void ComponentSelectionPage::selectComponent(const QString &id)

Selects the component with id in the component tree.

[invokable] void ComponentSelectionPage::selectDefault()

Selects the components that have the <Default> element set to true in the package information file.

[override virtual protected] void ComponentSelectionPage::showEvent(QShowEvent *event)

Reimplements: QWidget::showEvent(QShowEvent *event).

Called when the show event event occurs. Switching pages back and forth might restore or remove the checked state of certain components the end users have checked or not checked, because the dependencies are resolved and checked when clicking Next. So as not to confuse the end users with newly checked components they did not check, the state they left the page in is restored.

[override virtual protected] bool ComponentSelectionPage::validatePage()

Reimplements: PackageManagerPage::validatePage().

Called when ComponentSelectionPage is validated. Tries to load component scripts for components about to be installed. Returns true if the script loading succeeded and the next page is shown.